Frame for shelves



FIG. 1 is a first perspective view of a design for the frame for shelves;

FIG. 2 is the first perspective view without environmental elements blocking a view thereof;

FIG. 3 is a second perspective view of the design therefor;

FIG. 4 is the second perspective view without environmental elements blocking a view thereof;

FIG. 5 is a right side view of the design therefor, which view is mirrored by the left side view opposing the right side view;

FIG. 6 is a front view of the design therefor;

FIG. 7 is the front view without environmental elements blocking a view thereof;

FIG. 8 is a rear view of the design therefor;

FIG. 9 is the rear view without environmental elements blocking a view thereof;

FIG. 10 is a top plan view of the design therefor;

FIG. 11 is the top plan view without environmental elements blocking a view thereof; and,

FIG. 12 is a bottom plan view of the design therefor.

The dashed lines in the drawings are shown for environmental purposes and form no part of the claimed design. 

The ornamental design for a frame for shelves, as shown and described. 